Everlife Home offers ADU packages with 1-2 bedroom floor plans, full kitchens, and standard finishes. As a full-service ADU contractor, they manage the entire build, with optional upgrades, decks, and storage add-ons available.
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Straight Line Design and Remodeling LLC offers ADU design and build services in Portland, Oregon. Serving Beaverton, Tigard, Lake Oswego & Hillsboro since 2010, they build backyard cottages for rental income, multigenerational living & added property value.
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JDI Construction is a Portland-based ADU contractor offering full design-build services for detached, attached, garage conversion, basement, above-garage, and interior ADUs, including permits and eco-friendly practices.
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Triangle Bar Group understands that embarking on an ADU project can feel overwhelming, especially with so many options, decisions, and different Portland ADU builders to choose from. That’s where they come in.
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For more than 15 years, we’ve turned backyards into beautifully crafted living spaces. From permits to finishing touches, our team knows every step inside and out. Choose the classic charm of our Traditional Series, the clean lines of our Modern Series or the efficiency and flexibility of our Urban Series. Build with the crew that wrote the ADU playbook: RG ProBuilders.
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Lamont Bros. Design & Construction is a Portland, Oregon ADU contractor offering full design-build services. They help homeowners plan and build accessory dwelling units, including detached ADUs, garage conversions, and JADUs for rental income or flexible living.
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Neil Kelly designs & builds ADUs in the Northwest, including detached cottages, garage conversions, basement/attic conversions & attached units. Expert team handles permits, local regulations & custom design for rental income, guests or family housing.
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Cronen Building Co. is an expert ADU builder specializing in granny flats, garage conversions, backyard cottages, and detached ADUs. They deliver custom accessory dwelling units that boost property value and functionality.
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Jenson General Contracting builds ADUs in Newberg, Oregon, including detached units, garage conversions & in-law suites. Key rules cover size limits, height, setbacks & lot coverage. All Oregon ADUs need a bathroom, kitchen & separate entrance.
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Exceptional Home Builders Salem is a licensed ADU contractor with 20+ years of experience. They build backyard cottages, garage conversions & basement apartments in Salem, handling design, permitting & construction.
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COOPER Design Build offers custom ADU construction in Portland, OR. With 30+ years of experience, they handle design, permitting, zoning, and full construction management for detached accessory dwelling units up to 800 sq ft.
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Keyser Construction Inc is a Portland, OR ADU contractor since 1996. They build detached cottages, garage conversions, basement & attic ADUs. Licensed, bonded & insured, offering free estimates and permit handling across the Portland metro area.
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Suite Additions Portland specializes in ADU construction, garage conversions, home additions, and accessibility remodeling in the Portland metro area. Led by Tim Jorgens (CCB #201364), they offer full-service design, permitting, and build solutions.
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Clarkbuilt is a Portland, Oregon residential contractor specializing in custom homes, remodels, additions, and ADU construction. Founded in 2006, they offer expert accessory dwelling unit building, custom cabinetry, and serve clients across Oregon and Washington.
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Portland ADU Design & Build is a licensed ADU contractor serving Portland & the Willamette Valley. Specializing in detached ADUs, garage conversions & basement ADUs, they manage design, permitting & construction for lasting property value.
read moreOregon City holds a unique distinction as the first incorporated city west of the Rocky Mountains, and its rich historical character shapes how development — including Accessory Dwelling Units (ADUs) — is approached. Nestled along the Willamette River and home to the famous Municipal Elevator, Oregon City blends historic preservation requirements with modern housing needs. If you're looking for experienced ADU contractors in Oregon City, Oregon, understanding the local landscape is essential before breaking ground.
Oregon City falls under Clackamas County jurisdiction for some areas, but the city itself has its own planning and zoning codes. ADU development in Oregon City must comply with the Oregon City Development Code, which outlines specific rules for both attached and detached ADUs. Key regulations include:
Working with a licensed ADU contractor familiar with Oregon City's permitting process can save you significant time and money. The city's planning department requires building permits, and in some cases, design review approval before construction begins. A knowledgeable local contractor will understand how to navigate these steps efficiently, including coordinating with the Oregon City Public Works Department for utility connections and site development requirements.
Oregon City's varied topography — including hillside lots with dramatic elevation changes — influences the type of ADU that works best for a given property. Skilled ADU builders in Oregon City commonly construct:
With Oregon's statewide push to address housing shortages, ADUs in Oregon City represent a smart investment. They can generate rental income, provide multigenerational living options, or increase overall property value. Oregon state law (HB 2001) has also expanded ADU allowances statewide, giving homeowners more flexibility than ever. Partnering with a reputable, licensed and insured ADU contractor in Oregon City, OR ensures your project meets all local codes while maximizing your investment.